package com.itheima.Day0611.Demo01.demo01;

public class sun extends er{
    int a = 30;


    public void methodsun (){
        int a = 40;
        System.out.println(a);
        System.out.println(this.a);
        System.out.println(super.a);
        System.out.println("我是孙类方法");
    }
}
